JP2016112060A - Electric bed control system and electric bed - Google Patents

Abstract

[PROBLEMS] To set the bed angle at an arbitrary angle instead of the step angle, set the bed angle at an accurate angle, have good reproducibility to the same angle, and can be easily replaced during maintenance inspections and repairs. To provide an electric bed control system and an electric bed excellent in maintainability. An electric bed control system 10 drives a motor 9 of an electric bed 1 by feeding back posture information detected by the sensor 3 installed in an operating part 2 of the electric bed 1 and posture information detected by the sensor 3. The motor control unit 4 includes an operation unit 5 that transmits a motor drive command to the motor control unit 4. As the sensor 3, an inertial sensor or an angular velocity sensor can be suitably used. [Selection] Figure 1

Description

  The present invention relates to an electric bed control system and an electric bed, and more particularly to an electric bed control system and an electric bed that can arbitrarily set an operating part.

  Many electric beds for medical and nursing use are already in widespread use. The mechanism uses an electric motor as a power source and tilts the separated parts (bottom, working part) on the bed to make an angle. The angle setting is performed by a person such as a nurse or the patient. It is made and positioned by “sense”.

  Many technical proposals for electric beds have been made. For example, in Patent Document 1 listed below, in an electric bed that can take a chair position by rotating the bottom of the back, knees, and feet, the body slips easily and reliably when the chair position is taken. In order to prevent this, the back angle, knee angle, and foot angle are detected by the angle sensor for detecting the position of the piston rod of each actuator that drives the bottom of the back, knee, and foot. A system is disclosed in which the knee angle is obtained from a setting table, and the bottom is tilted to the appropriate position of the chair position in order from the knee angle by the control unit.

Japanese Unexamined Patent Publication No. 2013-111360 “Electric bed and body slip prevention control method”

  Now, the way to tilt the working part in the conventional electric bed is to stop and position the drive when it reaches the approximate angle by the sense of the user who operates the working part drive. It was difficult to ensure bed angle setting and reproducibility to the same angle. This is because the conventional electric bed has a configuration without an angle detector. For the electric bed user, since the posture must be maintained for a long time on the bed in the same posture, a subtle difference in angle is a big problem.

  The above document discloses an electric bed using an angle sensor, which is adjusted by a preset angle, that is, a step angle based on angle information obtained by attaching the sensor to a motor that drives each operating unit. This technique is not adjustable to an arbitrary angle. Further, since the angle sensor is attached to the motor, the replacement work is complicated in the case of maintenance inspection, failure repair, and the like.

  Therefore, the problem to be solved by the present invention is based on the problems of the prior art, and it is possible to set the bed angle at an arbitrary angle instead of the step angle, set the bed angle at an accurate angle, and reproduce the same angle. It is an object to provide an electric bed control system and an electric bed that are easy to replace and can be easily replaced at the time of maintenance, inspection, and repair, and have excellent maintainability.

  As a result of studying the above problems, the inventor of the present application has installed an inertial sensor that can detect a posture state, not an angle sensor, in the operating unit itself, not a motor that drives the operating unit of the bed. The present inventors have found that the problem can be solved by constructing a control system fed back to the above, and based on this, the present invention has been completed. That is, the invention claimed in the present application, or at least the disclosed invention, as means for solving the above-described problems is as follows.

[1] A sensor for posture detection installed in the operating part of the electric bed, a motor control unit that drives the motor of the electric bed by feedback of posture information detected by the sensor, and a motor drive unit for the motor control unit. An electric bed control system consisting of an operation unit that transmits commands.
[2] The electric bed control system according to [1], wherein the sensor is an inertial sensor.
[3] The electric bed control system according to [1], wherein the sensor is an angular velocity sensor.
[4] The electric bed control system according to [1], wherein the sensor is an angle sensor.

[5] The electric bed control system according to any one of [1] to [4], wherein the posture of the operating unit can be controlled to an arbitrary angle or a set angle.
[6] The electric bed control system according to any one of [1] to [5], wherein each operating part of the electric bed having a plurality of operating parts can be controlled.
[7] A posture detection sensor installed in the operating part of the electric bed, a motor control unit that drives the motor of the electric bed by feedback of posture information detected by the sensor, and an electric bed posture in the motor control unit An electric bed comprising an operation unit for transmitting a control command.
[8] The electric bed according to [7], comprising a plurality of operating units.

  Since the electric bed control system and the electric bed of the present invention are configured as described above, according to this, the bed angle can be adjusted at an arbitrary angle and the bed angle can be adjusted at an accurate angle. In addition, adjustment to the same angle can be performed with good reproducibility. In addition, it is easy to replace at the time of maintenance inspection and repair, etc., and it is excellent in maintainability.

  Furthermore, according to the present invention, since the state / posture of a bed user such as a patient can be set quantitatively, more detailed clinical data in treatment can be acquired. Further, depending on the configuration method of the moving part of the bed, for example, application to rehabilitation on the bed after plastic surgery such as lower limbs, application to an operating table, a treatment table, and the like are possible.

It is a conceptual diagram which shows the basic composition of this invention electric bed control system. It is a conceptual diagram which shows another structure of this invention electric bed control system. It is a conceptual diagram which shows another structure of this invention electric bed control system.

Hereinafter, the present invention will be described in detail with reference to the drawings.
FIG. 1 is a conceptual diagram showing the basic configuration of the electric bed control system of the present invention. As shown in the figure, the electric bed control system 10 includes an attitude detection sensor 3 installed in the operating unit 2 of the electric bed 1, and attitude information detected by the sensor 3 is fed back to move the motor 9 of the electric bed 1. The main configuration includes a motor control unit 4 to be driven and an operation unit 5 that transmits a motor drive command to the motor control unit 4. As the sensor 3, an inertial sensor or an angular velocity sensor can be suitably used. An angle sensor may also be used. As described above, the bed according to the present invention includes an operating table and a treatment table.

  With this configuration, in the electric bed control system 10 of the present invention, a motor drive command is transmitted from the operation unit 5 to the motor control unit 4, and the posture detection sensor 3 installed in the operating unit 2 of the electric bed 1. The detected attitude information of the operating unit 2 is fed back to the motor control unit 4, and based on these commands and information, a command for driving the operating unit 2 is issued to the motor 9 by the motor control unit 4, and the motor 9 is driven. Then, the operating unit 2 is moved and fixed to a desired posture position.

  That is, according to the present system 10, the attitude of the operating unit 2 can be controlled at an arbitrary angle set by the operation unit 5 or at a preset angle. This is not a method of adjusting by a preset angle, that is, a step angle based on angle information obtained by attaching a sensor to a motor that drives an operating unit as in the prior art, so that an arbitrary angle can be adjusted. . Further, since the sensor 3 can directly detect the actual posture state of the operating unit 2, it is possible to perform control based on more accurate posture information. Furthermore, since it is not a form of an angle sensor attached to a motor, replacement work in the case of maintenance inspection, fault repair, etc. is easy.

  The operation unit 5 is designed to have any specifications except that it has at least an angle setting function for a user to input an instruction to a desired posture (angle) and a display function for monitoring the current posture (angle). Also good. In addition to the items to be monitored, the operation speed, the previous instruction angle, and the like may be displayed. In addition, although the visual means is suitable for the display method, an audio means may be used in addition to or instead of this.

  2 and 3 are conceptual diagrams showing other configurations of the electric bed control system of the present invention. As shown in these figures, the electric bed control system 210 and the like of the present invention may include a plurality of operating units 221 and 222 and the like, and a plurality of sensors 231 and 232 and the like accordingly. 2 shows an example in which the back part and the leg part are operating parts, and FIG. 3 shows an example in which the back part, the thigh part, and the lower limb part are active parts.

  Further, a posture detection sensor 3 and the like installed in the operating portion 2 and the like of the electric bed 1 and a motor control portion that drives the motor 9 and the like of the electric bed 1 by feedback of posture information detected by the sensor 3 and the like. 4 and the like, and the electric bed 1 and the like provided with the operation unit 5 and the like for transmitting a command for controlling the electric bed attitude to the motor control unit 4 and the like are also within the scope of the present invention. Of course, a case where a plurality of operating units 221, 222 and the like are provided as in the examples of FIGS.

  According to the electric bed control system and electric bed of the present invention, an inertial sensor, an angular velocity sensor, or the like is mounted on the operating part of the electric bed to obtain posture information, which is fed back to the controller, so that a quantitative arbitrary angle (numerical value) The angle of the bed can be tilted and fixed to a set angle. Therefore, it is an invention with high industrial applicability in all fields where electric beds are used and all related fields including medical and nursing care fields.

1, 21, 31 ... Electric beds 2, 221, 222, 321, 322, 323 ... Working part 3, 231, 232, 331, 332, 333 ... Sensors for posture detection 4, 24, 34 ... Motor control part 5, 25, 35 ... operation units 6, 26, 36 ... non-operating units 9, 291, 292, 391, 392, 393 ... motors 10, 210, 310 ... electric bed control system

Claims (8)

An attitude detection sensor installed in the operating part of the electric bed, an attitude information detected by the sensor is fed back to drive a motor of the electric bed motor, and a motor drive command is transmitted to the motor control part. An electric bed control system consisting of an operation unit. The electric bed control system according to claim 1, wherein the sensor is an inertial sensor. The electric bed control system according to claim 1, wherein the sensor is an angular velocity sensor. The electric bed control system according to claim 1, wherein the sensor is an angle sensor. The electric bed control system according to any one of claims 1 to 4, wherein the posture of the operating unit can be controlled to an arbitrary angle or a set angle. 6. The electric bed control system according to claim 1, wherein each of the operating parts of the electric bed provided with a plurality of operating parts can be controlled. A sensor for posture detection installed in the operating part of the electric bed, a motor control unit that drives the motor of the electric bed by feedback of posture information detected by the sensor, and a command for electric bed posture control to the motor control unit An electric bed, comprising an operation unit for transmitting information. The electric bed according to claim 7, comprising a plurality of operating units.

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